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MEDIUM
ENGLISH
Agriculture
Abiotic components are:
A
Inorganic
Option A
B
Organic
Option B
C
Climatic
Option C
D
All of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Causes of plant succession are:
A
Environmental changes produced as a result of reaction to the community become favorable for new species of plants
Option A
B
Physiographic factors produce change in the habitat like flooding of plains, soil erosion, change in temperature, rain etc.
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Plant succession means:
A
A change in the composition and nature of plant community of particular habitat over the years
Option A
B
Any habitat can be studied systematically provided the area is free from any external disturbance
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Classification of plant succession categorised as:
A
Primary succession
Option A
B
Secondary succession
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Typical successions in forest are:
A
Riverain
Option A
B
Estuarine
Option B
C
Coniferous
Option C
D
All of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Forest Ecosystem means:
A
The produces in forest are actual at different strata from the ground level to the canopy of trees.
Option A
B
The litter and consequently the humus layers is thick
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Hydrophytes (Aquatic Plants) means:
A
A reduction of the protective, conducting and supporting tissues
Option A
B
Absences of palisade tissue
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Plant associations refer:
A
A group or community of plants living together in common habitat
Option A
B
A group may include different species of plants, belonging to different families
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Hygrophytes (Moisture loving plants) means:
A
The pants are usually stunted in growth
Option A
B
Roots and stem are poorly developed
Option B
C
Leaves are large and tend to avoid water less lam transpiration
Option C
D
All of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Xerophytes means:
A
Grow in desert or dry, hot, sandy place with scanty rainfall
Option A
B
A desert habitant is characterized by Blarcity of water in soil, extremely dry intense light, high temp and strong winds
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Mesophytes means:
A
Are ordinary plants growing under average conditions
Option A
B
The occupy intermediate conditions between xerophyte and hydrophytes
Option B
C
Some trees and stress with deciduous leaves show marked seasonal differences
Option C
D
All of the above
Option D
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MEDIUM
ENGLISH
Agriculture
The modes of Perennation are:
A
Evergreen trees
Option A
B
Deciduous trees
Option B
C
Herbaceous perennials
Option C
D
All of the above
Option D
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MEDIUM
ENGLISH
Agriculture
The soil moisture constants are:
A
Hygroscopic co-efficient
Option A
B
Water holding capacity
Option B
C
Field Capacity
Option C
D
All of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Soil water depicts:
A
Gravitational
Option A
B
Capillary
Option B
C
Hygroscopic
Option C
D
All of the above
Option D
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MEDIUM
ENGLISH
Agriculture
The Organic contents of soil are:
A
Humus
Option A
B
Mull
Option B
C
Peat and Much
Option C
D
All of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Accelerated soil erosion factors are:
A
Soil erosion by water
Option A
B
Soil erosion by wind
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
The major types of soil erosion are:
A
Normal or geological
Option A
B
Accelerated
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
Causes of accelerated erosion are:
A
Removal of the natural vegetation cover
Option A
B
Cultivation of land by crops which expose the soil to direct rain impact and runoff water
Option B
C
Both (a) & (b)
Option C
D
None of these
Option D
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MEDIUM
ENGLISH
Agriculture
The major types of wind erosion are:
A
Siltation
Option A
B
Soil creep
Option B
C
Suspension
Option C
D
All of the above
Option D
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MEDIUM
ENGLISH
Agriculture
What is silvicultural system?
A
It is the process by which the crops constituting a forest are tended, removed and replaced by new crops, resulting in the production on woods of a distinctive form
Option A
B
Rearing of silk worm
Option B
C
It is a kind of upland watersheds
Option C
D
None of these
Option D
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